Yung Ch’ang, China (Google Maps ⧉, OpenStreetMap ⧉)

"In the eleventh moon of 1272 [...] Kúblái ‘presented the name Yung-ch’ang to the new city built by Prince Chi-pi T’ie-mu-r.’"

"Therefore the road from Yung Ch’ang to La-mêng fulfils the conditions of a great descent, riding two and a half days continually down hill finding oneself in a (Shan) Province to the south, besides being on a well-known road to Burma."